Weather in San Diego in July
July in San Diego is mild with average temperatures around 23.2°C (73.8°F). Light rainfall with only 4mm expected.
Data Note: Temperature values are 2001–2020 satellite/reanalysis grid averages from NASA POWER and may differ from airport station normals by a few degrees.
Temperature
High
29.5°C
85.1°F
Low
16.8°C
62.2°F
Precipitation
4 mm
0.2 inches
~1 rainy days
Conditions
Humidity
58%
Comparison to Adjacent Months
July is 3.4°C warmer than June.